Red in Studio

Could 3 RED cameras be used in a studio setup (2k, 4k or 5k) and be routed through a switcher? My initial thoughts are NO WAY but I do not know a lot about RED. If so, how big of a crew would you need to run the cameras in a studio setting? Also, are their zoom lenses you can get for the RED so you would be able to put servos on them?

The RED really isn't designed for live work. It might be in the future, but trying to control the look you want from three cameras on a 720p output of a RED ONE doesn't make much sense.

Now if you were to record everything then do the cut in FCP, that would make a lot more sense. (That is, if the timecode features on the RED ONE allow for jam syncing cameras. If not, you'd have to do it manually with a slate.)

The 720p output on the camera looks nice and sharp, but it's really intended for monitoring, with camera data as required. You can also record it for offline use. It does not (AFAIK) do a full debayer in camera, limiting the quality of the image.

More of a problem would be the 35mm depth of field the camera allows, making focus in a live studio much harder.

Finally - yes you can use focus assists on the camera, powered or otherwise - it allows for all the accessories of a film camera, PL mount lenses, matte boxes etc.

If you are really considering using RED in such a way, I suggest you do some more research into the current uses of 35mm cameras and the workflows and people required. This is not a 'video' camera, it's a digital cinema camera, and not suitable for all uses.